What factors determine a person's hair color and eye color? Why are some people short and some tall? These questions and others similar to them are answered in this engaging guide to the science of genetics. Through this accessible resource, readers learn about the inherited traits parents can pass down to their children. Clear and concise language is used to simplify this complex science curriculum topic. A helpful glossary, detailed sidebars, interesting fact boxes, and striking, full-color photographs enhance the main text and provide even more details about the fascinating world of genetics.